Unit 2 Flashcards
When there is a market failure - who steps in?
Government reaction to market failure
Demand
Consumers try to maximize utility or maximize happiness. To do this, they will buy a certain amount of goods that bring them the highest level of utility.
Demand curve
a function that shows the quantity demanded at different prices (how much of a given good do consumers want to purchase at a certain price; how much they want to consume for that good); slope downward
Downward sloping demand
reason as prices fall, the amount the consumers demand increases (they want to buy more when the price goes down)
Example of demand curve
Which demand curve?
apples @ $5 = we buy 2.5 apples, @ $3 = we buy4 apples; apples are cheaper than oranges it makes senses that’s what I’ll spend my money on; shift away from oranges to apples because oranges are more expensive ( law of demand)
The Law of Demand
the idea that demand curves slope downward. As price goes up, demand goes down. Many public health interventions exploit this law.
Law of demand (as result of soda tax)
Soda tax means people have to give up more stuff to drink soda, therefore they consume less soda
Law of demand (as result of cigarette tax)
Because people have to give up more to consume a pack of cigarettes, they will likely consume less cigarettes (decrease the demand)
Shifts in demand curve (either inward or outward)
The demand curve shows how quantity demanded changes as the prices changes, holding other things constant (the market stays fixed). When those other things change, this causes the demand curve to _____
Factors that cause a shift in demand curve:
- Income
- Price of related good (substitutes + complements)
- Changes in consumer tastes or preferences
- Changes in population composition
- Changes in expectations about future prices or other factors that affect demand
supply
refers to the total amount of goods or services available to consumers
Law of supply
Upward sloping supply curve ;Supply curves are upward sloping because suppliers want to sell things for as much as they can.
Example of law of supply
the price of a good only changes the quantity supplied. Holding all else constant, at $3 an apple, a producer is willing to sell 2.5 apples, but when the price of an apple goes up to $6 an apple, the producer is willing to sell 5.5 apples. (the more apples you sell, you take more shelf space away from oranges and devote them to apples)
What factors cause shifts in the supply curve?
o Changes/New science and technology o Size of market o Government policies (taxes and subsidies) o Changes in price of relevant inputs o Seller expectations
Competitive Equilibrium
occurs when profit-maximizing producers and utility-maximizing consumers in competitive markets with freely determined prices arrive at an equilibrium price.